1834 - Thomas Davenport of Vermont developed the first real electric motor ('real' meaning powerful enough to do a task) although Joseph Henry and Michael Faraday created early motion devices using electromagnetic fields.
Below is a more detailed usage of operating systems according to age group: 18 to 34 years old. Of all the smartphone users, 50% use Android as operating system, 43% use iPhone, 39% use Microsoft and 38% use RIM. Apparently, more users prefer Android.
From DOS to the golden age of Windows: The classic operating systems you can run in the browser. Travelling back in time. Those of us who grew up with computers have witnessed great change: from the hulking tower PCs of yore to the pocket-sized smartphones of today and from blinking green screen cursors to 4K graphical displays.